William baeclay paesons



. No Model.) W. B. J1,

AUTOMATIC FLUSHING SIPHON';

'No. 334,606. Patented Jan. 19,1886..

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N. PETERS. Phmwmhn n hur, Waxhi nnnnn c UNITED ST TES PATENT OFFICE.

WILLIAM BARCLAY PARSONS, in, or New YORK, N. Y.

AUTOMATIC FLUSHlNG-SIPHON.

SPECIFICATIUN forming part of Letters Patent No. 334,606, dated January19, 1886.

Application filed November 21, 1585. Serial No. 183,516. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM BARcLAY PAR- SONS, Jr., oftlie city, county,and State of New York, have invented a new and Improved AutomaticFlushing-Siphon, of which the following isa full, clear, and exactdescription.

My present invention relates to the construction of an automatic andintermittent flushingsiphon adapted for use in connection with awater-closet or other form of trough, but designed more particularly tomeet the requirements of such a trough as that forming thesubject-matter of my application N 0. 174,804, filed August 19, 1885.

The invention consists of a main and auxiliary siphon of novelconstruction, as will be hereinafter explained, and specifically pointedout in the claims.

Reference is to be had to the accompanying drawings, forming part ofthis specification, in which similarletters of referenceindicatecorresponding parts in both the figures.

Figure 1 is a longitudinal vertical sectional view of the water-closettrough above referred to, my improved siphoning apparatus beingrepresented as applied thereto, and said siphoning attachrnent beingshown in central vertical section; and Fig. 2 is an enlarged detail viewof the siphon, the view being taken in' central vertical section. v

Referring now to the general construction illustrated in the drawings, Arepresents a trough below the seat-board B. This trough is the same asthe trough heretofore described in my application above referred to, andconsists of a box-like structure, of which the bot tom consists of aseries of basins, each of which is provided with a weir or dam upon theside nearest the outlet of the trough, which outlet is shown at O, andleads to'the sewer or cesspool. With such a trough as has been describedit is desirable that there should be some means whereby the trough canhe automatically and intermittingly flushed, and it is to meet thisrequirement that I have designed the siphon forming the subject-matterof this application,which siphon will now be specifically described.

D is atank, fed by a pipe, a, the flow of water from said pipe beingcontrolled by a stopcock, b, which can be set to deliver the amount ofwater required. Alarge pipe, E, passes up through the bottom of the tankD, and from this pipe E there is a' branch pipe,F, of rela tively muchsmaller bore, the top of pipe F being slightly lower than the top of E,so that water will flow down F before reaching the top of E. Thejunctiona, where F branches out from E, is so arranged that a small pipe, G, ofbore similar to F,can be tapped therein, so as to prolong F within thebore of E, as clearly shown in Fig. 3, in case it may be desired toincrease the fall through E, the pipe E being jointed just below thejunction, so that the mechanical part of this operation can easily beperformed. The top of F'is covered by a small concentric cap, H,securedin any suitable manner, but preferably by means of arms e 6, while alarge cap, I, covers the whole arrangement within the tank. This capI isheld in adjustable position by a rod, K, that is secured to a boss, f,on the top of the cap, and passes through eyes formed in two horizontalarms, 9 g, which project from a vertical standard, h, that is rigidlysecured to the side of the tank D. The

'arm g carries a set-screw, '5, arranged to bear against the rod K andbind it within the eye, which arrangement permits the cap I to be raisedor lowered, so thatalargeorsmall depth of water can be drawn off fromthe tank D. The water from the pipe a is usually allowed to trickle in asmall stream, so that the waterlevel in the tank D is slowly raisedinside of the cap I and cap H. Now,cap H i n connection with pipe F,forms asiphon. When, thereforerw ater reaches the top of F, the siphonis automatically set in operation, and F being larger in size than thestream flowing from pipe (1, the water-level is quickly drawn down tobottom of cap H. On reaching the bottom H the rush of water draws air,which air' is that contained between the water-level and the top of thecap I, because air cannot rise up the pipe E against downflowing waterfrom F to G. A partial yacuunris thus suddenly produced in cap l whichis quickly followed by a correspbnding rise of water, and this rise ofwater will be sufficient to start the flow from the pipe E, which, beingof large diameter, will quickly draw off the water in D to a level belowthe bottom of I, and the water so drawn will be rapidly discharged intothe upper pan of the trough A,which the lower end of the pipe E enters,as best shown in Fig. 1. It will thus be seen that the purpose of theauxiliary siphon formed by cap H and pipe F is to cause the main siphonformed by I and E to operate with a very small supply-stream, which, ifit flowed directly down E,would not be sufiicient to move the air in thepipe, and so cause the siphon to begin to flow.

In order to insure aperiodical discharge from E by breaking the vacuumin I, and thus allowing the tank D to be refilled,the lower edge, 1), ofthe cap' I is cut at an angle, sothat air will flow in at the uppermostpoint, 8, as soon as the water is drawn below such point; or the sameresult couldbe obtained by forminga V- shaped notch in one side of thecap. Cap H can be cut in the same manner, or straight, as desired. \Vhenthe siphon formed by E and I begins to flow, as previously described,the water is discharged with great vehemence out of the pipe E and intothe trough A, thereby flushing said tank.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. Aflushing apparatus consisting of a main and an auxiliary siphon, thelong legs of the two siphons being connected, substantially asdescribed.

2. Aflushing apparatus consisting of a main and an auxiliary siphon. theauxiliary siphon being arranged beneath the cap of the main siphon,andhaving its long leg connected to the long leg of the main siphon,substantially as described.

3. A flushing apparatus consisting of a siphon formed by a pipe, E, anda cap, I, adustably mounted by means of a rod, K, said siphon beingprovided with an auxiliary siphon formed by a pipe, F, and a cap, H,substantially as described.

WILLIAM BARCLAY PARSONS, JR.

Witnesses:

EDWARD KENT, J r., O. SEDGwIoK.

